The Strata Titles Act 1985 (Amendment 2013), section 17A, Management corporation is can form a subsidiary MC (SMC) to manage limited common property (LCP) for the respective groups of parcel owners via a 2/3 majority during an AGM/EGM (relevant in a mixed development property).
However, the Act does not address such powers during JMB period (JMB is usually a body form before strata title is issued and prolong/possible delay in the issuance of strata title may result in practical issues arises between different types of parcel owners i.e. commercial parcel owners & residential parcel owners on their respective rights to use/control relevant common space.
